94 lines
4.1 KiB
Java
94 lines
4.1 KiB
Java
/*
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* Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8022865
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* @summary Tests for the -XX:CompressedClassSpaceSize command line option
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* @requires vm.bits == 64 & vm.opt.final.UseCompressedOops == true
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* @run driver CompressedClassSpaceSize
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*/
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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public class CompressedClassSpaceSize {
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public static void main(String[] args) throws Exception {
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ProcessBuilder pb;
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OutputAnalyzer output;
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// Minimum size is 1MB
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pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=0",
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"-version");
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output = new OutputAnalyzer(pb.start());
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output.shouldContain("outside the allowed range")
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.shouldHaveExitValue(1);
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// Invalid size of -1 should be handled correctly
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pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=-1",
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"-version");
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output = new OutputAnalyzer(pb.start());
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output.shouldContain("Improperly specified VM option 'CompressedClassSpaceSize=-1'")
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.shouldHaveExitValue(1);
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// Maximum size is 3GB
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pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=4g",
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"-version");
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output = new OutputAnalyzer(pb.start());
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output.shouldContain("outside the allowed range")
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.shouldHaveExitValue(1);
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// Make sure the minimum size is set correctly and printed
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pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
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"-XX:CompressedClassSpaceSize=1m",
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"-Xlog:gc+metaspace=trace",
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"-version");
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output = new OutputAnalyzer(pb.start());
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output.shouldMatch("Compressed class space.*1048576")
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.shouldHaveExitValue(0);
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// Make sure the maximum size is set correctly and printed
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pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
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"-XX:CompressedClassSpaceSize=3g",
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"-Xlog:gc+metaspace=trace",
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"-version");
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output = new OutputAnalyzer(pb.start());
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output.shouldMatch("Compressed class space.*3221225472")
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.shouldHaveExitValue(0);
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pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedClassPointers",
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"-XX:CompressedClassSpaceSize=1m",
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"-version");
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output = new OutputAnalyzer(pb.start());
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output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
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.shouldHaveExitValue(0);
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}
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}
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